haechan 0.1.4

Computer vision utilities for dataset visualization

haechan

Computer vision utilities for dataset visualization.

Installation

pip install haechan

Usage

import numpy as np
from PIL import Image, ImageDraw
from haechan import palette, blend, label, save_img, save_gif

# Get color palette (VOC-style, 254 colors)
colors = palette()  # or get_colors(num_classes=100) for custom count

# Blend image with segmentation mask
img = np.array(Image.open("image.jpg"))
mask = np.array(Image.open("mask.png"))
blended = blend(img, mask, fg=mask > 0)

# Save image (numpy array or PIL Image)
save_img(blended, "output.jpg")

# Place label on mask center
pil_img = Image.fromarray(blended)
draw = ImageDraw.Draw(pil_img)
label(draw, mask == 1, text="person", color=(255, 0, 0))

# Save frames as GIF
frames = [Image.open(f"frame{i}.png") for i in range(10)]
save_gif(frames, "output.gif", duration=200)

License

MIT